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scikit-image/scikits/image/opencv/tests/test_opencv_cv.py
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Python

# test for the opencv_cv extension module
import os
import warnings
import numpy as np
from numpy.testing import *
from scikits.image import data_dir
with warnings.catch_warnings():
warnings.simplefilter("ignore")
from scikits.image.opencv import *
opencv_skip = dec.skipif(not loaded,
'OpenCV libraries not found')
class OpenCVTest:
lena_RGB_U8 = np.load(os.path.join(data_dir, 'lena_RGB_U8.npy'))
lena_GRAY_U8 = np.load(os.path.join(data_dir, 'lena_GRAY_U8.npy'))
class TestSobel(OpenCVTest):
@opencv_skip
def test_cvSobel(self):
cvSobel(self.lena_GRAY_U8)
class TestLaplace(OpenCVTest):
@opencv_skip
def test_cvLaplace(self):
cvLaplace(self.lena_GRAY_U8)
class TestCanny(OpenCVTest):
@opencv_skip
def test_cvCanny(self):
cvCanny(self.lena_GRAY_U8)
class TestPreCornerDetect(OpenCVTest):
@opencv_skip
def test_cvPreCornerDetect(self):
cvPreCornerDetect(self.lena_GRAY_U8)
class TestCornerEigenValsAndVecs(OpenCVTest):
@opencv_skip
def test_cvCornerEigenValsAndVecs(self):
cvCornerEigenValsAndVecs(self.lena_GRAY_U8)
class TestCornerMinEigenVal(OpenCVTest):
@opencv_skip
def test_cvCornerMinEigenVal(self):
cvCornerMinEigenVal(self.lena_GRAY_U8)
class TestCornerHarris(OpenCVTest):
@opencv_skip
def test_cvCornerHarris(self):
cvCornerHarris(self.lena_GRAY_U8)
class TestSmooth(OpenCVTest):
@opencv_skip
def test_cvSmooth(self):
for st in (CV_BLUR_NO_SCALE, CV_BLUR, CV_GAUSSIAN, CV_MEDIAN,
CV_BILATERAL):
cvSmooth(self.lena_GRAY_U8, None, st, 3, 0, 0, 0, False)
class TestFindCornerSubPix:
@opencv_skip
def test_cvFindCornersSubPix(self):
img = np.array([[1, 1, 1, 0, 0, 0, 1, 1, 1],
[1, 1, 1, 0, 0, 0, 1, 1, 1],
[1, 1, 1, 0, 0, 0, 1, 1, 1],
[0, 0, 0, 1, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 1, 1, 0, 0, 0],
[1, 1, 1, 0, 0, 0, 1, 1, 1],
[1, 1, 1, 0, 0, 0, 1, 1, 1],
[1, 1, 1, 0, 0, 0, 1, 1, 1]], dtype='uint8')
corners = np.array([[2, 2],
[2, 5],
[5, 2],
[5, 5]], dtype='float32')
cvFindCornerSubPix(img, corners, 4, (2, 2))
class TestGoodFeaturesToTrack(OpenCVTest):
@opencv_skip
def test_cvGoodFeaturesToTrack(self):
cvGoodFeaturesToTrack(self.lena_GRAY_U8, 100, 0.1, 3)
class TestGetRectSubPix(OpenCVTest):
@opencv_skip
def test_cvGetRectSubPix(self):
cvGetRectSubPix(self.lena_RGB_U8, (20, 20), (48.6, 48.6))
class TestGetQuadrangleSubPix(OpenCVTest):
@opencv_skip
def test_cvGetQuadrangleSubPix(self):
warpmat = np.array([[0.5, 0.3, 0.4],
[-.4, .23, 0.4]], dtype='float32')
cvGetQuadrangleSubPix(self.lena_RGB_U8, warpmat)
class TestResize(OpenCVTest):
@opencv_skip
def test_cvResize(self):
cvResize(self.lena_RGB_U8, height=50, width=50, method=CV_INTER_LINEAR)
cvResize(self.lena_RGB_U8, height=200, width=200, method=CV_INTER_CUBIC)
class TestWarpAffine(OpenCVTest):
@opencv_skip
def test_cvWarpAffine(self):
warpmat = np.array([[0.5, 0.3, 0.4],
[-.4, .23, 0.4]], dtype='float32')
cvWarpAffine(self.lena_RGB_U8, warpmat)
class TestWarpPerspective(OpenCVTest):
@opencv_skip
def test_cvWarpPerspective(self):
warpmat = np.array([[0.5, 0.3, 0.4],
[-.4, .23, 0.4],
[0.0, 1.0, 1.0]], dtype='float32')
cvWarpPerspective(self.lena_RGB_U8, warpmat)
class TestFindChessboardCorners:
@opencv_skip
def test_cvFindChessboardCorners(self):
chessboard_GRAY_U8 = np.load(os.path.join(data_dir,
'chessboard_GRAY_U8.npy'))
pts = cvFindChessboardCorners(chessboard_GRAY_U8, (7, 7))
class TestDrawChessboardCorners:
@opencv_skip
def test_cvDrawChessboardCorners(self):
chessboard_GRAY_U8 = np.load(os.path.join(data_dir,
'chessboard_GRAY_U8.npy'))
chessboard_RGB_U8 = np.load(os.path.join(data_dir,
'chessboard_RGB_U8.npy'))
corners = cvFindChessboardCorners(chessboard_GRAY_U8, (7, 7))
cvDrawChessboardCorners(chessboard_RGB_U8, (7, 7), corners)
if __name__ == '__main__':
run_module_suite()